Finding the Fourth Proportional to 6,991.52, 9,647.30 and 4,007.48

Step by Step Solution

1. Step 1: Write the proportion equation
   6,991.52 : 9,647.30 = 4,007.48 : x
2. Step 2: Convert to fraction form
   6,991.52/9,647.30 = 4,007.48/x
3. Step 3: Cross multiply
   6,991.52x = 9,647.30 × 4,007.48
4. Step 4: Simplify right side
   6,991.52x = 38,661,323.59
5. Step 5: Solve for x
   x = 38,661,323.59/6,991.52
6. Step 6: Final answer
   x = 5,529.75